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25 //
26 /// \file electromagnetic/TestEm1/src/DetectorConstruction.cc
27 /// \brief Implementation of the DetectorConstruction class
28 //
29 //
30
31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
33
34 #include "DetectorConstruction.hh"
35
36 #include "DetectorMessenger.hh"
37
38 #include "G4AutoDelete.hh"
39 #include "G4Box.hh"
40 #include "G4GeometryManager.hh"
41 #include "G4GlobalMagFieldMessenger.hh"
42 #include "G4LogicalVolume.hh"
43 #include "G4LogicalVolumeStore.hh"
44 #include "G4Material.hh"
45 #include "G4NistManager.hh"
46 #include "G4PVPlacement.hh"
47 #include "G4PhysicalConstants.hh"
48 #include "G4PhysicalVolumeStore.hh"
49 #include "G4RunManager.hh"
50 #include "G4SolidStore.hh"
51 #include "G4SystemOfUnits.hh"
52 #include "G4UnitsTable.hh"
53
54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
55
56 DetectorConstruction::DetectorConstruction()
57 {
58 fBoxSize = 10 * m;
59 DefineMaterials();
60 SetMaterial("G4_Al");
61 fDetectorMessenger = new DetectorMessenger(this);
62 }
63
64 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
65
66 DetectorConstruction::~DetectorConstruction()
67 {
68 delete fDetectorMessenger;
69 }
70
71 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
72
73 void DetectorConstruction::DefineMaterials()
74 {
75 //
76 // define Elements
77 //
78 G4double z, a;
79
80 G4Element* H = new G4Element("Hydrogen", "H", z = 1., a = 1.01 * g / mole);
81 G4Element* C = new G4Element("Hydrogen", "C", z = 6., a = 12.00 * g / mole);
82 G4Element* N = new G4Element("Nitrogen", "N", z = 7., a = 14.01 * g / mole);
83 G4Element* O = new G4Element("Oxygen", "O", z = 8., a = 16.00 * g / mole);
84 G4Element* Ge = new G4Element("Germanium", "Ge", z = 32., a = 72.59 * g / mole);
85 G4Element* Bi = new G4Element("Bismuth", "Bi", z = 83., a = 208.98 * g / mole);
86
87 //
88 // define materials
89 //
90 G4double density;
91 G4int ncomponents, natoms;
92 G4double fractionmass;
93
94 G4Material* Air = new G4Material("Air", density = 1.290 * mg / cm3, ncomponents = 2);
95 Air->AddElement(N, fractionmass = 70. * perCent);
96 Air->AddElement(O, fractionmass = 30. * perCent);
97
98 G4Material* H2l = new G4Material("H2liquid", density = 70.8 * mg / cm3, ncomponents = 1);
99 H2l->AddElement(H, fractionmass = 1.);
100
101 G4Material* H2O = new G4Material("Water", density = 1.000 * g / cm3, ncomponents = 2);
102 H2O->AddElement(H, natoms = 2);
103 H2O->AddElement(O, natoms = 1);
104 /// H2O->SetChemicalFormula("H_2O");
105 H2O->GetIonisation()->SetMeanExcitationEnergy(78.0 * eV);
106
107 density = 0.001 * mg / cm3;
108 G4Material* CO2 = new G4Material("CO2", density, ncomponents = 2);
109 CO2->AddElement(C, natoms = 1);
110 CO2->AddElement(O, natoms = 2);
111
112 G4Isotope* d = new G4Isotope("d", 1, 2, 0.0, 0);
113 G4Element* D = new G4Element("Heavy-Hydrogen", "D", ncomponents = 1);
114 D->AddIsotope(d, 1.0);
115 G4Material* D2 = new G4Material("D2_gas", density = 0.036 * mg / cm3, ncomponents = 1);
116 D2->AddElement(D, natoms = 2);
117
118 new G4Material("liquidArgon", z = 18., a = 39.95 * g / mole, density = 1.390 * g / cm3);
119
120 new G4Material("Aluminium", z = 13., a = 26.98 * g / mole, density = 2.700 * g / cm3);
121
122 new G4Material("Silicon", z = 14., a = 28.09 * g / mole, density = 2.330 * g / cm3);
123
124 new G4Material("Chromium", z = 24., a = 51.99 * g / mole, density = 7.140 * g / cm3);
125
126 new G4Material("Germanium", z = 32., a = 72.61 * g / mole, density = 5.323 * g / cm3);
127
128 G4Material* BGO = new G4Material("BGO", density = 7.10 * g / cm3, ncomponents = 3);
129 BGO->AddElement(O, natoms = 12);
130 BGO->AddElement(Ge, natoms = 3);
131 BGO->AddElement(Bi, natoms = 4);
132
133 new G4Material("Iron", z = 26., a = 55.85 * g / mole, density = 7.870 * g / cm3);
134
135 new G4Material("Tungsten", z = 74., a = 183.85 * g / mole, density = 19.30 * g / cm3);
136
137 new G4Material("Gold", z = 79., a = 196.97 * g / mole, density = 19.32 * g / cm3);
138
139 new G4Material("Lead", z = 82., a = 207.19 * g / mole, density = 11.35 * g / cm3);
140
141 new G4Material("Uranium", z = 92., a = 238.03 * g / mole, density = 18.95 * g / cm3);
142
143 G4Material* argonGas =
144 new G4Material("ArgonGas", z = 18, a = 39.948 * g / mole, density = 1.782 * mg / cm3, kStateGas,
145 273.15 * kelvin, 1 * atmosphere);
146
147 G4Material* butane = new G4Material("Isobutane", density = 2.42 * mg / cm3, ncomponents = 2,
148 kStateGas, 273.15 * kelvin, 1 * atmosphere);
149 butane->AddElement(C, natoms = 4);
150 butane->AddElement(H, natoms = 10);
151
152 G4Material* ArButane = new G4Material("ArgonButane", density = 1.835 * mg / cm3, ncomponents = 2,
153 kStateGas, 273.15 * kelvin, 1. * atmosphere);
154 ArButane->AddMaterial(argonGas, fractionmass = 70 * perCent);
155 ArButane->AddMaterial(butane, fractionmass = 30 * perCent);
156
157 // example of vacuum
158 //
159 density = universe_mean_density; // from PhysicalConstants.h
160 new G4Material("Galactic", z = 1., a = 1.008 * g / mole, density, kStateGas, 2.73 * kelvin,
161 3.e-18 * pascal);
162
163 // use Nist
164 //
165 G4NistManager* man = G4NistManager::Instance();
166
167 G4bool isotopes = false;
168 /// G4Element* O = man->FindOrBuildElement("O" , isotopes);
169 G4Element* Si = man->FindOrBuildElement("Si", isotopes);
170 G4Element* Lu = man->FindOrBuildElement("Lu", isotopes);
171
172 G4Material* LSO = new G4Material("Lu2SiO5", 7.4 * g / cm3, 3);
173 LSO->AddElement(Lu, 2);
174 LSO->AddElement(Si, 1);
175 LSO->AddElement(O, 5);
176
177 /// G4cout << *(G4Material::GetMaterialTable()) << G4endl;
178 }
179
180 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
181
182 G4VPhysicalVolume* DetectorConstruction::Construct()
183 {
184 if (fPBox) {
185 return fPBox;
186 }
187 fBox = new G4Box("Container", // its name
188 fBoxSize / 2, fBoxSize / 2, fBoxSize / 2); // its dimensions
189
190 fLBox = new G4LogicalVolume(fBox, // its shape
191 fMaterial, // its material
192 fMaterial->GetName()); // its name
193
194 fPBox = new G4PVPlacement(0, // no rotation
195 G4ThreeVector(), // at (0,0,0)
196 fLBox, // its logical volume
197 fMaterial->GetName(), // its name
198 0, // its mother volume
199 false, // no boolean operation
200 0); // copy number
201
202 PrintParameters();
203
204 // always return the root volume
205 //
206 return fPBox;
207 }
208
209 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
210
211 void DetectorConstruction::PrintParameters()
212 {
213 G4cout << "\n The Box is " << G4BestUnit(fBoxSize, "Length") << " of " << fMaterial->GetName()
214 << G4endl;
215 G4cout << fMaterial << G4endl;
216 }
217
218 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
219
220 void DetectorConstruction::SetMaterial(const G4String& materialChoice)
221 {
222 // search the material by its name
223 G4Material* pttoMaterial = G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
224
225 if (pttoMaterial) {
226 fMaterial = pttoMaterial;
227 if (fLBox) {
228 fLBox->SetMaterial(fMaterial);
229 }
230 }
231 else {
232 G4cout << "\n--> warning from DetectorConstruction::SetMaterial : " << materialChoice
233 << " not found" << G4endl;
234 }
235 G4RunManager::GetRunManager()->PhysicsHasBeenModified();
236 }
237
238 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
239
240 void DetectorConstruction::SetSize(G4double value)
241 {
242 fBoxSize = value;
243 if (fBox) {
244 fBox->SetXHalfLength(fBoxSize / 2);
245 fBox->SetYHalfLength(fBoxSize / 2);
246 fBox->SetZHalfLength(fBoxSize / 2);
247 }
248 }
249
250 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
251
252 void DetectorConstruction::ConstructSDandField()
253 {
254 if (fFieldMessenger.Get() == 0) {
255 // Create global magnetic field messenger.
256 // Uniform magnetic field is then created automatically if
257 // the field value is not zero.
258 G4ThreeVector fieldValue = G4ThreeVector();
259 G4GlobalMagFieldMessenger* msg = new G4GlobalMagFieldMessenger(fieldValue);
260 // msg->SetVerboseLevel(1);
261 G4AutoDelete::Register(msg);
262 fFieldMessenger.Put(msg);
263 }
264 }
265
266 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
267